Segmented adjusting structure of air separation plate type cold box

Abstract

The utility model relates to the technical field of cold boxes, and discloses a sectional adjusting structure of an air separation plate type cold box, which comprises a separation tower, a plurality of groups of sliding sleeves are fixedly connected to the surface of the separation tower, adjusting components are slidably connected to the interiors of the sliding sleeves, and two groups of fixing rings are sleeved on the surface of the separation tower. According to the segmented adjusting structure of the air separation plate type cold box, through the arrangement of the adjusting assembly, when the cold box is separated, the internal pressure of segments in a separation tower enters the sliding sleeve to extrude the piston, so that the piston slides on the threaded rod and further extrudes the pressure spring, the pressure spring is stressed to deform and stretch out and draw back, and gas and liquid in the separation tower reach the supporting pipe through the through pipe; and then the gas reaches the bottom and enters the bottom of the separation tower for further cyclic separation, so that the effect of automatically adjusting the pressure of the sections is achieved, the stability of the internal pressure of each section is kept, and the safety and the automatic adjusting capability of the section adjusting structure are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cold boxes, in particular to a segmented adjustment structure of an air separation plate type cold box. Background Art

[0002] The cold box is a set of high-efficiency, heat-insulating and cold-preserving low-temperature heat exchange equipment. It is often used in the process of cryogenic separation. For example, in the process of cryogenic separation of petroleum cracking gas, a cold box working at about -100 to -140°C is used. It consists of a compact and efficient plate heat exchanger and a gas-liquid separator. Because low temperature is very easy to dissipate cold, extremely strict heat insulation and cold preservation are required. Therefore, the heat exchanger and separator are packed in a box-shaped object with insulating materials, which is called a cold box. The air separation plate cold box is a device for gas or liquid separation, which is usually used in gas separation, liquefied air, oxygen production, nitrogen production and other processes in the industrial field. The segmented adjustment structure refers to the adjustment device inside the cold box, which is used to adjust the temperature, pressure or flow of different segments to achieve more precise operation and control. Through the segmented adjustment structure, the air separation plate cold box can achieve precise control of different segments, thereby improving the operating efficiency and production quality of the equipment.

[0003] The existing segmented adjustment structure of the air separation plate cold box is not convenient for automatically adjusting the segmented pressure in actual use, so as to maintain the stability of the internal pressure of each segment and improve the safety and automatic adjustment capability of the segmented adjustment structure.

[0004] After searching the existing patents: a container-type segmented air separation cold box device (publication number: CN218269817U), including a separation device cold box body for separating and producing oxygen, nitrogen, argon and other gas products using air as raw material, the air separation cold box device body includes a main cold box, a subcooler cold box, a plate cold box, a pump cold box, and an expander cold box assembled in sections in sequence, wherein the main cold box is spliced ​​into one by splicing the main cold box upper section and the main cold box lower section, and a pump cold box and a subcooler cold box are respectively installed on the two adjacent sides of the bottom thereof, and the other side of the subcooler cold box is connected with the plate cold box and the expander cold box in sequence, and the connection between the main cold box upper section, the main cold box lower section, the subcooler cold box, the plate cold box, the pump cold box, and the expander cold box is provided with flange connection holes, and sealing cover plates are provided on the flange connection holes. The utility model makes the container compact as a whole, improves the equipment installation quality, and reduces the workload of on-site installation.

[0005] Although the above patent has achieved the goal of making the container compact as a whole, improving the quality of equipment installation and reducing the workload of on-site installation, it is not convenient for buffering and shock absorption to prevent long-term machine vibration, causing internal parts to loosen and reducing the service life of the cold box.

[0006] Therefore, it is necessary to invent a segmented adjustment structure of an air separation plate type cold box to solve the above problems. Utility Model Content

[0007] 1. Technical issues to be resolved

[0008] The technical problem solved by the utility model is to provide a segmented adjustment structure of an air separation plate-type cold box which is highly practical and can be operated simply and has a relatively simple structure, thereby solving the problem of inconvenience in automatically adjusting segmented pressure and buffering shock absorption raised in the above-mentioned background technology.

[0009] (II) Technical solution

[0010] To achieve the above purpose, the utility model is implemented through the following technical solutions: a segmented adjustment structure of an air separation plate-type cold box, including a separation tower, a plurality of groups of sliding sleeves are fixedly connected to the surface of the separation tower, the internal sliding connection adjustment components of the sliding sleeves, two groups of fixing rings are sleeved on the surface of the separation tower, a plurality of groups of buffer components are fixedly connected to the surface of the fixing rings, one end of the buffer component is fixedly connected to a flange, one side of the flange is threadedly connected to a cold box shell, and one side of the cold box shell is through-connected with a delivery pipe.

[0011] As a further solution of the utility model, the adjustment assembly includes a sliding plate slidably connected to the inside of the sliding sleeve, the internal thread of the sliding plate is connected to the threaded rod, one side of the sliding plate is fixedly connected to a pressure spring, one end of the pressure spring is fixedly connected to a piston, and the piston is easy to slide on the surface of the threaded rod.

[0012] As a further solution of the utility model, the buffer assembly includes a fixed block fixedly connected to the surface of the fixed ring, a hydraulic rod is fixedly connected to one side of the fixed block, a buffer spring is sleeved on the surface of the hydraulic rod, and the buffer spring facilitates buffering and shock reduction to reduce damage to parts.

[0013] As a further solution of the utility model, one end of the threaded rod is fixedly connected to a rotating wheel, and a sliding hole matching the threaded rod is opened on the surface of the piston, and the sliding hole facilitates the piston to slide on the threaded rod.

[0014] As a further solution of the utility model, a plurality of discharge pipes are connected through the surface of the separation tower, and a vertical ladder is fixedly connected to one side of the cold box shell, which is convenient for personnel to climb and repair the cold box.

[0015] As a further solution of the utility model, two groups of sliding blocks are fixedly connected to the surface of the sliding plate, and sliding grooves adapted to the sliding blocks are provided inside the sliding sleeve, and the sliding grooves facilitate the sliding blocks to slide and limit inside the sliding sleeve.

[0016] As a further solution of the utility model, four groups of support columns are fixedly connected to the bottom of the cold box shell, and the bottom of the support columns is fixedly connected to a chassis, which is convenient for support and increases the force-bearing area.

[0017] As a further solution of the utility model, a controller is fixedly connected to one side of the cold box shell, and a connecting pipe is connected through one side of the bottom of the cold box shell, and the connecting pipe is convenient for transportation.

[0018] As a further solution of the utility model, a through pipe is connected to the bottom of the sliding sleeve, and a support pipe is connected to one end of the through pipe. The support pipe facilitates the delivery of depressurized gas and liquid to the bottom for circulation and separation.

[0019] (III) Beneficial effects

[0020] The utility model provides a segmented adjustment structure of an air separation plate type cold box, which has the following beneficial effects:

[0021] 1. The segmented adjustment structure of the air separation plate cold box adjusts the setting of the components. When the cold box is separated, the internal pressure of the segment in the separation tower enters the sliding sleeve to squeeze the piston, causing the piston to slide on the threaded rod, and then squeeze the pressure spring, causing the pressure spring to deform and expand under force. The gas and liquid in the separation tower reach the support pipe through the through pipe, and then reach the bottom, and then enter the bottom of the separation tower for further circulation and separation, thereby achieving the effect of automatically adjusting the segmented pressure, maintaining the stability of the internal pressure of each segment, and improving the safety and automatic adjustment ability of the segmented adjustment structure.

[0022] 2. The segmented adjustment structure of the air separation plate cold box is provided with a buffer component. When the cold box is in use, the vibration generated by the operation of the machine is transmitted to the fixed ring through the surface of the separation tower, and then transmitted to the hydraulic rod through the fixed block, so that the hydraulic rod contracts and the buffer spring is deformed by force to produce rebound, thereby offsetting the vibration, thereby achieving the effect of buffering and shock absorption, preventing long-term machine vibration from causing loosening of internal parts and reducing the service life of the cold box. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the adjustment component of the utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the buffer component of the utility model.

[0027] In the figure: 1. separation tower; 2. sliding sleeve; 3. adjustment assembly; 301. sliding plate; 302. threaded rod; 303. pressure spring; 304. piston; 4. fixing ring; 5. buffer assembly; 501. fixing block; 502. hydraulic rod; 503. buffer spring; 6. flange; 7. cold box shell; 8. conveying pipe; 9. rotating wheel; 10. discharge pipe; 11. vertical ladder; 12. sliding block; 13. support column; 14. chassis; 15. controller; 16. connecting pipe; 17. through pipe; 18. support pipe. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figures 1 to 4 The utility model provides a technical solution: a segmented adjustment structure of an air separation plate-type cold box, comprising a separation tower 1, a plurality of groups of sliding sleeves 2 are fixedly connected to the surface of the separation tower 1, and an adjustment component 3 is slidably connected to the inside of the sliding sleeve 2. By setting the adjustment component 3, the effect of automatically adjusting the segmented pressure is achieved, the internal pressure of each segment is kept stable, and the safety and automatic adjustment ability of the segmented adjustment structure are improved. Two groups of fixing rings 4 are sleeved on the surface of the separation tower 1, and a plurality of groups of buffer components 5 are fixedly connected to the surface of the fixing ring 4. By setting the buffer components 5, the effect of buffering and shock absorption is achieved, and the internal parts of the internal parts are prevented from loosening due to long-term machine vibration, which reduces the service life of the cold box. One end of the buffer component 5 is fixedly connected to a flange 6, and one side of the flange 6 is threadedly connected to a cold box shell 7, and one side of the cold box shell 7 is through-connected with a conveying pipe 8;

[0030] The adjustment assembly 3 includes a sliding plate 301 slidably connected to the inside of the sliding sleeve 2, the internal thread of the sliding plate 301 is connected to the threaded rod 302, one side of the sliding plate 301 is fixedly connected to a pressure spring 303, one end of the pressure spring 303 is fixedly connected to a piston 304, and the piston 304 is arranged to slide on the surface of the threaded rod 302;

[0031] The buffer assembly 5 includes a fixed block 501 fixedly connected to the surface of the fixed ring 4, a hydraulic rod 502 is fixedly connected to one side of the fixed block 501, and a buffer spring 503 is sleeved on the surface of the hydraulic rod 502. The buffer spring 503 is provided to buffer and reduce the damage to parts.

[0032] One end of the threaded rod 302 is fixedly connected to the rotating wheel 9, and the surface of the piston 304 is provided with a sliding hole adapted to the threaded rod 302. The setting of the sliding hole facilitates the sliding of the piston 304 on the threaded rod 302.

[0033] The surface of the separation tower 1 is connected with a plurality of discharge pipes 10, and a vertical ladder 11 is fixedly connected to one side of the cold box shell 7. The vertical ladder 11 is provided to facilitate personnel to climb and repair the cold box.

[0034] Two sets of sliders 12 are fixedly connected to the surface of the sliding plate 301, and a sliding groove adapted to the sliders 12 is provided inside the sliding sleeve 2. The setting of the sliding groove facilitates the sliders 12 to slide and limit inside the sliding sleeve 2;

[0035] Four groups of support columns 13 are fixedly connected to the bottom of the cold box shell 7, and a chassis 14 is fixedly connected to the bottom of the support column 13. The chassis 14 plays a role of supporting and increasing the force-bearing area;

[0036] A controller 15 is fixedly connected to one side of the cold box shell 7, and a connecting pipe 16 is connected to one side of the bottom of the cold box shell 7. The setting of the connecting pipe 16 facilitates transportation.

[0037] A through pipe 17 is connected through the bottom of the sliding sleeve 2, and a support pipe 18 is connected through one end of the through pipe 17. The support pipe 18 is provided to transport the depressurized gas and liquid to the bottom for circulation and separation.

[0038] In the utility model, the working steps of the device are as follows:

[0039] Step 1: During cold box separation, the internal pressure of the separation tower 1 is divided into sections, and enters the sliding sleeve 2 to squeeze the piston 304, so that the piston 304 slides on the threaded rod 302;

[0040] Step 2: Then squeeze the pressure spring 303, so that the pressure spring 303 is deformed and expanded under force, and the gas and liquid in the separation tower 1 reach the support pipe 18 through the through pipe 17, and then reach the bottom, and then enter the bottom of the separation tower 1 for further circulation and separation;

[0041] The third step: when the cold box is in use, the vibration generated by the operation of the machine is transmitted to the fixing ring 4 through the surface of the separation tower 1, and then transmitted to the hydraulic rod 502 through the fixing block 501, so that the hydraulic rod 502 contracts and the buffer spring 503 is deformed by force to rebound, thereby offsetting the vibration.

[0042] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0043] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A segmented adjustment structure of an air separation plate-type cold box, comprising a separation tower (1), characterized in that: The surface of the separation tower (1) is fixedly connected with a plurality of sliding sleeves (2), the sliding sleeves (2) are internally slidably connected with adjustment components (3), the surface of the separation tower (1) is sleeved with two groups of fixing rings (4), the surface of the fixing rings (4) is fixedly connected with a plurality of buffer components (5), one end of the buffer component (5) is fixedly connected with a flange (6), one side of the flange (6) is threadedly connected with a cold box shell (7), and one side of the cold box shell (7) is through-connected with a conveying pipe (8).

2. The segmented adjustment structure of the air separation plate type cold box according to claim 1 is characterized in that: The adjustment assembly (3) comprises a sliding plate (301) slidably connected to the interior of the sliding sleeve (2); the internal thread of the sliding plate (301) is connected to the threaded rod (302); one side of the sliding plate (301) is fixedly connected to a pressure spring (303); one end of the pressure spring (303) is fixedly connected to a piston (304).

3. The segmented adjustment structure of the air separation plate type cold box according to claim 1 is characterized in that: The buffer assembly (5) comprises a fixed block (501) fixedly connected to the surface of the fixed ring (4); a hydraulic rod (502) is fixedly connected to one side of the fixed block (501); and a buffer spring (503) is sleeved on the surface of the hydraulic rod (502).

4. The segmented adjustment structure of the air separation plate type cold box according to claim 2 is characterized in that: One end of the threaded rod (302) is fixedly connected to a rotating wheel (9), and a sliding hole matching the threaded rod (302) is provided on the surface of the piston (304).

5. The segmented adjustment structure of the air separation plate type cold box according to claim 1 is characterized in that: A plurality of groups of discharge pipes (10) are connected through the surface of the separation tower (1), and a vertical ladder (11) is fixedly connected to one side of the cold box shell (7).

6. The segmented adjustment structure of the air separation plate type cold box according to claim 2 is characterized in that: Two groups of sliding blocks (12) are fixedly connected to the surface of the sliding plate (301), and a sliding groove matching the sliding blocks (12) is provided inside the sliding sleeve (2).

7. The segmented adjustment structure of the air separation plate type cold box according to claim 1 is characterized in that: Four groups of support columns (13) are fixedly connected to the bottom of the cold box shell (7), and a chassis (14) is fixedly connected to the bottom of the support columns (13).

8. The segmented adjustment structure of the air separation plate type cold box according to claim 1 is characterized in that: A controller (15) is fixedly connected to one side of the cold box shell (7), and a connecting pipe (16) is connected through one side of the bottom of the cold box shell (7).

9. The segmented adjustment structure of the air separation plate type cold box according to claim 1 is characterized in that: A through pipe (17) is connected through the bottom of the sliding sleeve (2), and a support pipe (18) is connected through one end of the through pipe (17).

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